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Finding the Fourth Proportional to 82,756.62, 124,059.69 and 30,154.14

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Solution

The fourth proportional to 82,756.62, 124,059.69 and 30,154.14 is: 45,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,756.62 : 124,059.69 = 30,154.14 : x
  2. Step 2: Convert to fraction form
    82,756.62/124,059.69 = 30,154.14/x
  3. Step 3: Cross multiply
    82,756.62x = 124,059.69 × 30,154.14
  4. Step 4: Simplify right side
    82,756.62x = 3,740,913,260.62
  5. Step 5: Solve for x
    x = 3,740,913,260.62/82,756.62
  6. Step 6: Final answer
    x = 45,203.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.